Callothrix clavata development W.G.S. in soil treated with herbicide atrazine at agronomic rate
Date
2015Author
Murialdo, Raquel
Fernandez Belmonte, Cecilia
González, Claudia
Pesci, Hugo
Repetti, María R.
Reyna, Estela
Reyna, Santiago
Magni, Florencia
Metadata
Show full item recordAbstract
More than 70% of agricultural tillage in Argentina is made as direct seeding,
so weed control is done primarily with the application of herbicides. Atrazine (2-
chloro-4-ethylamino-6-isopropylamino-s-triazine) is one of the most widely used
herbicides for dicotyledonous weeds and for some grasses in corn and sorghum. In
the 2010 campaign) were used 7,854,873 liters (CASAFE 2011. Furthermore, there
is evidence that repeated application of some herbicides (eg. atrazine, 2,4-D,
paraquat, trifluralin) for many years can aggravate a negative impact and change the
structure of the microbial community and, as a consequence, affect the ability for
biodegradation(1). This would have consequences not only in biological processes
associated with soil fertility and crop productivity, but also in the mechanisms of
biodegradation of the herbicide themselves(2).